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3 years ago

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Mathematics

1 answer:

Norma-Jean [14]3 years ago

3 0

Answer:

F=15

Step-by-step explanation:

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Chan rows at a rate of 8 mph in still water. It takes him three hours to row upstream from his house to the park. He rows back h

Degger [83]

Well in my calculations I got: well if you he increases the speed by 2.6 per hour soo 4+2.6=6.6

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3 years ago

HELP PLEASE!!! Thanks!

Irina18 [472]

Answer:

2) $\frac{\sqrt{77}}{11}$

3) 5√2

Step-by-step explanation:

Simplest radical form of an expression is the expression in radical so that there are no more square roots, cube roots, 4th roots, etc left to find, after rationalising the denominator ( if needed ).

2. Here the given expressions,

$\frac{\sqrt{7}}{\sqrt{11}}$

For rationalising the denominator multiply both numerator and denominator by √11,

$\frac{\sqrt{77}}{11}$

3. given expression,

$\sqrt{50}$

$=\sqrt{25\times 2}$

$=\sqrt{25}\times \sqrt{2}$ $(\because \sqrt{ab}=\sqrt{a}\sqrt{b})$

$=5\sqrt{2}$

8 0

3 years ago

HELP ASAP PLEASE!!

Korolek [52]

Answer:

you can check on a website called "desmos graphing."

3 0

3 years ago

The darnells are having a swimming pool installed. the pool has a radius of 14 feet and a height of 4 feet. what is the volume o

Drupady [299]

Answer: 2461.76 cubic feet

Step-by-step explanation:

$V=\pi r^{2} h\\\\V=(\pi)(14^{2})(4)\\\\V\approx (3.14)(14^{2})(4)=\boxed{2461.76}$

8 0

2 years ago

It takes 40 minutes for eight people to paint four walls how many minutes does it takes 10 people to paint seven walls

sasho [114]

8r(40)=4

r=1/80 that is the rate for each person...

10rt=7 using r we found before

10(1/80)t=7

t/8=7

t=56 minutes.

8 0

4 years ago